Wall block



FIG. 1 is a perspective view of the wall block;

FIG. 2 is a top view of the wall block;

FIG. 3 is a front view of the wall block;

FIG. 4 is a right side view of the wall block;

FIG. 5 is a rear view of the wall block;

FIG. 6 is a left side view of the wall block; and,

FIG. 7 is a top view of the wall block in its environment shown inbroken lines.

The broken lines showing the other like blocks in FIG. 7 represent theenvironments. In all drawing views, the broken lines immediatelyadjacent the shaded areas represent the bounds of the claim, and allother broken lines are included for the purpose of illustrating portionsof the wall block that form no part of the claimed design. None of thebroken lines form no part of the claimed design.

CLAIM The ornamental design for a wall block, as shown and described.